Question about 1993 Jeep Grand Cherokee

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I have a sensor tube hanging down from rear axle

I have a tube hanging down from a box located on top of the rear drivers side axle and can't find where it might connect to.i have looked all around and can't seem to see where it might connect to

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  • Dennis Ternamian Jun 14, 2009

    why does it have s snap ring on it ?.does it just snap into a hole or what? ----thanx

  • Dennis Ternamian Jun 14, 2009

    it's a steel box thats located between the wheel and center of axle the tube comes straight up out of it and is only on the left side

  • Richard Scordino May 11, 2010

    Likely its the vent can be tied anywhere up above the diff on the body...just keeps water out of the diff and lets it breathe so seals don't blow out.



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  • 6,982 Answers had to be held up there somehow... The box isn"t any kind of a control unit is it? (never seen one on rear, front on some have vacuum control.)

Posted on Jun 14, 2009



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Speed Sensors REMOVAL & INSTALLATION Front Fig. 1: The speed sensor sits directly over the exciter ring in the front knuckle 89609p51.jpg
Fig. 2: Detach the speed sensor connector in the engine compartment 89609p55.jpg
Fig. 3: Remove the speed sensor harness from the routing clips 89609p53.jpg
Fig. 4: A special E6 Torx® socket is required to remove the speed sensor retaining bolt 89609p52.jpg
  1. Disconnect the negative battery cable.
  2. From inside engine compartment, detach sensor assembly 2-pin connector from the wiring harness.
  3. Remove the steel routing clip attaching the sensor wire to the tube bundle on the left sensor or remove the plastic routing clip attaching the sensor wire to the frame on the right sensor.
  4. Remove the rubber coated spring steel clip holding the sensor wire to the frame.
  5. Remove the sensor wire from the steel routing clip on the frame and from the dust shield.
  6. Remove the sensor attaching bolt from the front spindle and slide the sensor out of the mounting hole. To install:
  7. Install the sensor into the mounting hole in the front spindle and attach with the mounting bolt. Tighten to 40–60 inch lbs. (4.5–6.8 Nm).
  8. Insert the sensor routing grommets into the dust shield and steel bracket on the frame. Route the wire into the engine compartment.
  9. Install the rubber coated steel clip that holds the sensor wire to the frame into the hole in the frame.
  10. Install the steel clip that holds sensor wire to tube bundle on left side or plastic clip that holds sensor to frame on right side.
  11. Reconnect the 2-pin connector to wire harness. Connect the negative battery cable.
Rear Fig. 5: Detach the speed sensor connector in the luggage compartment 89609p04.jpg
Fig. 6: Grasp the harness and . . . 89609p37.jpg
Fig. 7: . . . remove it from the routing brackets 89609p36.jpg
Fig. 8: The rear speed sensor is mounted on the back of the hub assembly 89609p32.jpg
Fig. 9: Remove the sensor retaining bolt and remove the sensor from the hub 89609p34.jpg
  1. Disconnect the negative battery cable.
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  3. From below vehicle, remove sensor wire from routing bracket located on top of rear axle carrier housing and remove steel clip holding sensor wire and brake tube against axle housing.
  4. Remove screw from clip holding sensor wire and brake tube to bracket on axle.
  5. Remove sensor to rear adapter retaining bolt and remove sensor. To install:
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  7. Attach the clip holding the sensor and brake tube to the bracket on the axle housing and secure with the retaining screw. Tighten the screw to 40–60 inch lbs. (4.5–6.8 Nm).
  8. Install steel clip around axle tube that holds sensor wire and brake tube against axle tube and push spool-shaped grommet into clip located on top of axle carrier housing.
  9. Push sensor wire connector up through hole in floor and seat large round grommet into hole.
  10. Reconnect sensor 2-pin connector to wiring harness inside luggage compartment.

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